Our unsub could have shot his victims anywhere, but he chose the heart, suggesting that he's been hurt by somebody close to him who's clearly the center of his rage.
"unsub" bisa saja menembak korbannya di mana saja, tapi dia memilih jantung, menunjukkan bahwa dia tersakiti oleh seseorang yang dekat dengannya yang menjadi pusat kemarahannya.